Case 590 Turbo, 590 Super L, 590 Super M Seal Kits

Hydraulic cylinder seal kits, cylinder seal rebuild packages, rebuilt boom cylinders, and cylinder tools for Case 590 Turbo, 590 Super L, and 590 Super M backhoe loaders, covering boom, dipper, bucket, stabilizer, swing, loader lift, loader tilt, extendahoe, steering, and clamshell loader bucket cylinder circuits.

Fits Models At A Glance

• 480E / 480F Series: 480E, 480F
• 570 Series: 570LXT, 570MXT, 570NXT, 570N EP
• 580K / 580 Super K Series: 580K, 580SK, 580SL, 580SM, 580SM+, 580 Super K
• 580L / 580 Super L Series: 580L, 580L Series II, 580SL, 580 Super L
• 580M / 580 Super M Series: 580M, 580SM, 580 Super M
• 580N / 580 Super N Series: 580N, 580N EP, 580SN, 580SN WT, 580 Super N, 580 Super N WT
• 590 Series: 590 Turbo, 590L, 590SL, 590SL Series I, 590SL Series II, 590SM, 590SM Series II, 590 Super L, 590 Super L Series I, 590 Super L Series II, 590 Super M, 590SN, 590 Super N

Key Notes

• Application: Hydraulic cylinder seal kits and tools for Case 590 Turbo, 590 Super L, and 590 Super M backhoe loader cylinders
• Coverage: Includes complete hydraulic cylinder seal rebuild packages, boom cylinder seal kits, dipper cylinder seal kits, bucket cylinder seal kits, stabilizer cylinder seal kits, swing cylinder seal kits, loader lift and bucket tilt cylinder seal kits, extendahoe cylinder seal kits, clamshell loader bucket cylinder seal kits, 4WD and 2WD steering cylinder seal kits, rebuilt boom cylinders, hydraulic line supports, loader bucket cylinder hoses, and cylinder tools
• Function: Restores hydraulic cylinder sealing and performance across all major cylinder positions on Case 590 Turbo, 590 Super L, and 590 Super M backhoe loader platforms
• Fitment Note: Series I and Series II configurations have different seal kit part numbers — verify series when ordering

Why Choose Broken Tractor

• ✅ Complete cylinder seal rebuild packages available for 590 Turbo, 590 Super L, and 590 Super M
• ✅ Individual seal kits available for every major cylinder position
• ✅ Rebuilt boom cylinders and cylinder tools available

Frequently Asked Questions

What seal kit package fits a Case 590 Super L Series 1 vs Series 2?

The Case 590 Super L uses different seal kit part numbers for Series 1 and Series 2, so confirm your series before ordering. Broken Tractor offers the CS-SK-5 hydraulic cylinder seal kit package for the 590 Super L Series 1 and the CS-SK-5A package for the 590 Super L Series 2. For individual cylinders, the 297895A1 bucket cylinder seal kit fits the 590 Super L Series II and 590 Super M, and the 86991006 steering seal kit fits the 590SL Series 2.

Is there a complete cylinder seal kit for a Case 590 Super M or 590 Turbo?

Yes, we carry complete hydraulic cylinder seal packages for both machines. The CS-SK-7 package fits the Case 590 Super M, and the CS-SK-6 rebuild package fits the 590 Turbo. If you only need to reseal one cylinder, individual kits are also available for the boom, dipper, bucket, stabilizer, swing and steering cylinders.

Which dipper cylinder seal kit fits a Case 590 Turbo?

The 1994527C2 dipper cylinder seal kit fits the Case 590 Turbo. We also offer the 1980181C2 swing and dipper cylinder seal kit for the 590 Turbo with the 14 foot backhoe. For the 590 Super L and 590 Super M, the dipper cylinder seal kit is 179011A1.

Does the bucket cylinder seal kit fit every Case 590 Super L?

No, bucket cylinder seal kit fitment on the Case 590 Super L depends on serial number and series. The 1542923C2 kit fits the 590 Turbo and the 590 Super L before serial number JJG0210575, while the 297895A1 kit fits the 590 Super L Series II and 590 Super M. Match the part number on your old kit or call (800) 909-7060 with your serial number to confirm the right one.

Should I reseal or replace the boom cylinder on a Case 590 Super L?

You can do either, and Broken Tractor offers both options. The 1980412C2 boom cylinder packing kit fits the Case 590 Turbo, 590 Super L and 590 Super M if you plan to reseal your existing cylinder. If you would rather swap the whole cylinder, we offer the 175785A1R rebuilt boom cylinder for the 590 Super L and 590 Super M, and the 1980395C5R remanufactured OEM boom cylinder for the 590 Turbo.